| Lens Specifications | |
|---|---|
| Name | Canon EF 20mm f/2.8 USM |
| Image Circle | 35mm |
| Type | Wide Prime |
| Focal Length | 20mm |
| APS Equivalent | 32mm |
| Max Aperture | f/2.8 |
| Min Aperture | f/22 |
| Diaphragm Blades | 6 |
| Lens Construction | 11 elements in 9 groups |
| Diagonal Angle of View(Based on image circle) | 94 degrees |
| Focus Details | Inner focusing; full-time manual focus and USM |
| Front Element Rotation | No |
| Zoom System | n/a |
| Closest Focus | 0.25m / 0.8 ft. |
| Magnification Ratio | 0.14x / 1:7.1 |
| Filter Size | 72mm |
| Dimensions(Length x Diameter) | 77mm x 71mm / 2.8 in. x 3.1 in. |
| Weight | 405g / 14.3 oz |
| Notes | |
| Typical Online Price | US$420 |
